string matching replace with case sensitive in python

I am quite new in python & trying to do some new stuff.I have two list in a dictionary.Let's say,

List开发者_如何转开发1:                              List2:
Anterior                            cord
cuneate nucleus                     Medulla oblongata
nucleus                             Spinal cord
Intermediolateral nucleus           Spinal 
                                    sksdsj
british                             7

And I have some text lines as below:

<s id="5239778-2">The name refers collectively to the cuneate nucleus and gracile nucleus, which are present at the junction between the spinal cord and the medulla oblongata.</s>
<s id="3691284-1">In the medulla oblongata, the arcuate nucleus is a group of neurons located on the anterior surface of the medullary pyramids.</s>
<s id="21120-99">Anterior horn cells, motoneurons located in the spinal.</s>
<s id="1053949-16">The Anterior cord syndrome results from injury to the anterior part of the spinal cord, causing weakness and loss of pain and thermal sensations below the injury site but preservation of proprioception that is usually carried in the posterior part of the spinal cord.</s>
<s id="69-7">...Meanwhile is the studio 7 album by British pop band 10cc.</s>

I have to get return those line whose belongs string both from list1 & list2.So,I have tried with the following code:

result = ""
if list1 in line and list2 in line:
    i1 = re.sub('(?i)(\s+)(%s)(\s+)'%list1, '\\1<e1>\\2</e1>\\3', line)
    i2 = re.sub('(?i)(\s+)(%s)(\s+)'%list2, '\\1<e2>\\2</e2>\\3', i1)
    result = result + i2 + "\n"
    continue

But I am getting the following result:

<s id="5239778-2">The name refers collectively to the <e1>cuneate nucleus</e1> and gracile nucleus, which are present at the junction between the spinal cord and the medulla oblongata.</s>
<s id="3691284-1">In the medulla oblongata, the arcuate <e1>nucleus</e1> is a group of neurons located on the anterior surface of the medullary pyramids.</s>
<s id="21120-99">Anterior horn cells, motoneurons located in the spinal.</s>
<s id="1053949-16">The <e1>Anterior</e1> <e2>cord</e2> syndrome results from injury to the <e1>anterior</e1> part of the spinal cord, causing weakness and loss of pain and thermal sensations below the injury site but preservation of proprioception that is usually carried in the posterior part of the spinal cord.</s>
<s id="69-7">...Meanwhile is the studio 7 album by British pop band 10cc.</s>

Here,Only the result line-4, I got that matches string from both list that is what I want.But, I don't want to get those line which match only one or no string(eg. result line-1 & 3).Also,if matches string from both list , should it tag them(eg. result line-2).

Any kind of help will be greatly appreciated.

Basically, you want to put some words in <e1> tags and other words in <e2> tags. Is that right?

If so, then something like this will do:

#!/usr/bin/python

from __future__ import print_function
import re

text = '''\
<s id="5239778-2">The name refers collectively to the cuneate nucleus and gracile nucleus, which are present at the junction between the spinal cord and the medulla oblongata.</s>
<s id="3691284-1">In the medulla oblongata, the arcuate nucleus is a group of neurons located on the anterior surface of the medullary pyramids.</s>
<s id="21120-99">Anterior horn cells, motoneurons located in the spinal cord.</s>
<s id="1053949-16">The Anterior cord syndrome results from injury to the anterior part of the spinal cord, causing weakness and loss of pain and thermal sensations below the injury site but preservation of proprioception that is usually carried in the posterior part of the spinal cord.</s>'''

list1 = ('Anterior', 'cuneate nucleus', 'Intermediolateral nucleus')
list2 = ('cord', 'Medulla oblongata', 'Spinal cord')

# put phrases in \b so that they match the whole words
re1 = re.compile("(%s)" % "|".join(r"\b%s\b" % i for i in list1), re.IGNORECASE)
re2 = re.compile("(%s)" % "|".join(r"\b%s\b" % i for i in list2), re.IGNORECASE)

for line in text.split("\n"):
    line = re1.sub(r"<e1>\1</e1>", line)
    line = re2.sub(r"<e2>\1</e2>", line)
    print(line)

Output:

<s id="5239778-2">The name refers collectively to the <e1>cuneate nucleus</e1> and gracile nucleus, which are present at the junction between the <e2>spinal cord</e2> and the <e2>medulla oblongata</e2>.</s>
<s id="3691284-1">In the <e2>medulla oblongata</e2>, the arcuate nucleus is a group of neurons located on the <e1>anterior</e1> surface of the medullary pyramids.</s>
<s id="21120-99"><e1>Anterior</e1> horn cells, motoneurons located in the <e2>spinal cord</e2>.</s>
<s id="1053949-16">The <e1>Anterior</e1> <e2>cord</e2> syndrome results from injury to the <e1>anterior</e1> part of the <e2>spinal cord</e2>, causing weakness and loss of pain and thermal sensations below the injury site but preservation of proprioception that is usually carried in the posterior part of the <e2>spinal cord</e2>.</s>

How about this:

result = ""
lines = ['<s id="5239778-2">The name refers collectively to the cuneate nucleus and gracile nucleus, which are present at the junction between the spinal cord and the medulla oblongata.</s>',
'<s id="3691284-1">In the medulla oblongata, the arcuate nucleus is a group of neurons located on the anterior surface of the medullary pyramids.</s>',
'<s id="21120-99">Anterior horn cells, motoneurons located in the spinal cord.</s>',
'<s id="1053949-16">The Anterior cord syndrome results from injury to the anterior part of the spinal cord, causing weakness and loss of pain and thermal sensations below the injury site but preservation of proprioception that is usually carried in the posterior part of the spinal cord.</s>']

for line in lines:
    for item1 in list1:
        if line.find(item1) != -1:
            for item2 in list2:
                if line.find(item2) != -1:
                      result = result + line + '\n'
                      break
            break
print result